In order to explain better, I have a main file with links to the other chapters. If I compile the singles chapters the DVI files work. The problem is when I try to compile the main file. Maybe it's more clear now.
**Input:Bibliografia.lyx ** ** \pagestyle{plain} ** ** \cleardoublepage ** **Input:Ringraziamenti.lyx ** This is the last code of the main file. Can help this? The error message is referred to the last row.